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energy is the ability to do work and produce changes in this video we're going to study the

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different forms of energy chemical energy this energy is stored in some substances such as food

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or batteries when you eat pasta your body receives energy from carbohydrates when you

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use a mobile phone the battery transforms chemical energy into

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electrical energy. Electrical energy. This is the motion of charged particles. For

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example televisions use electrical energy. Electricity reaches homes and

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factories through metal cables. Thermal energy. This energy is related to the

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movement of atoms in an object or substance. The more movement the more

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temperature and therefore more thermal energy. We use this energy to heat food,

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buildings and so on. Nuclear energy. This type of energy is stored in the atomic

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structure of matter. Scientists release this energy by breaking down the atoms

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of radioactive materials such as uranium. This is done in nuclear power plants.

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Radiant energy. This is the energy in the form of electromagnetic waves. Light is

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an example of radiant energy, known as light energy. We use light energy in

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flashlights, cameras, computers, cars or streetlights. Sound energy. Sounds are

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produced by vibrations traveling through air, liquid or solid object. The waves

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waves, make our eardrums vibrate and this allows us to hear.

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Mechanical Energy The energy produced by motion is mechanical

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energy.

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It is the energy that allows people and things to move, go faster or change direction.

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We use mechanical energy to produce motion when we ride a bicycle or push a shopping

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trolley.

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There are two types of mechanical energy,

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kinetic energy and potential energy.

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Kinetic energy.

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This energy results from the movement of an object.

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For example, the bicycle transforms the energy

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of your muscles into kinetic energy.

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Potential energy.

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It is the energy that results

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from the position of an object.

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For example, when you lift an object,

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you give it potential energy.